3.20.1 html 236 350 1 true 63 0 false 15 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.luxfer.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 1001000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) Statements 2 false false R3.htm 1002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfComprehensiveLossIncomeUnaudited CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) Statements 3 false false R4.htm 1002001 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) (Parenthetical) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfComprehensiveLossIncomeUnauditedCondensedConsolidatedStatementsOfComprehensiveLossIncomeUnauditedParenthetical CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) (Parenthetical) Statements 4 false false R5.htm 1003000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) Sheet http://www.luxfer.com/role/CondensedConsolidatedBalanceSheetsUnaudited CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) Statements 5 false false R6.htm 1003001 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) Sheet http://www.luxfer.com/role/CondensedConsolidatedBalanceSheetsUnauditedCondensedConsolidatedBalanceSheetsUnauditedParenthetical CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) Statements 6 false false R7.htm 1004000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Statements 7 false false R8.htm 1005000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfChangesInEquityUnaudited CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) Statements 8 false false R9.htm 1005001 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) Sheet http://www.luxfer.com/role/CondensedConsolidatedStatementsOfChangesInEquityUnauditedParenthetical CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) Statements 9 false false R10.htm 2101100 - Disclosure - Basis of Presentation and Responsibility for interim Financial Statements Sheet http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatements Basis of Presentation and Responsibility for interim Financial Statements Notes 10 false false R11.htm 2104100 - Disclosure - Earnings per share Sheet http://www.luxfer.com/role/EarningsPerShare Earnings per share Notes 11 false false R12.htm 2107100 - Disclosure - Revenue Sheet http://www.luxfer.com/role/Revenue Revenue Notes 12 false false R13.htm 2110100 - Disclosure - Restructuring Sheet http://www.luxfer.com/role/Restructuring Restructuring Notes 13 false false R14.htm 2113100 - Disclosure - Acquisition related costs Sheet http://www.luxfer.com/role/AcquisitionRelatedCosts Acquisition related costs Notes 14 false false R15.htm 2116100 - Disclosure - Goodwill and other identifiable intangible assets Sheet http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssets Goodwill and other identifiable intangible assets Notes 15 false false R16.htm 2119100 - Disclosure - Supplementary balance sheet information Sheet http://www.luxfer.com/role/SupplementaryBalanceSheetInformation Supplementary balance sheet information Notes 16 false false R17.htm 2122100 - Disclosure - Debt Sheet http://www.luxfer.com/role/Debt Debt Notes 17 false false R18.htm 2125100 - Disclosure - Derivatives and Financial Instruments Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstruments Derivatives and Financial Instruments Notes 18 false false R19.htm 2128100 - Disclosure - Income Taxes Sheet http://www.luxfer.com/role/IncomeTaxes Income Taxes Notes 19 false false R20.htm 2131100 - Disclosure - Pension Plans Sheet http://www.luxfer.com/role/PensionPlans Pension Plans Notes 20 false false R21.htm 2134100 - Disclosure - Share Plans Sheet http://www.luxfer.com/role/SharePlans Share Plans Notes 21 false false R22.htm 2137100 - Disclosure - Shareholders' Equity Sheet http://www.luxfer.com/role/ShareholdersEquity Shareholders' Equity Notes 22 false false R23.htm 2140100 - Disclosure - Segmental Information Sheet http://www.luxfer.com/role/SegmentalInformation Segmental Information Notes 23 false false R24.htm 2146100 - Disclosure - Commitments and Contingencies Sheet http://www.luxfer.com/role/CommitmentsAndContingencies Commitments and Contingencies Notes 24 false false R25.htm 2149100 - Disclosure - Subsequent Events Sheet http://www.luxfer.com/role/SubsequentEvents Subsequent Events Notes 25 false false R26.htm 2201201 - Disclosure - Basis of Presentation and Responsibility for interim Financial Statements (Policies) Sheet http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatementsPolicies Basis of Presentation and Responsibility for interim Financial Statements (Policies) Policies 26 false false R27.htm 2301302 - Disclosure - Basis of Presentation and Responsibility for interim Financial Statements (Tables) Sheet http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatementsTables Basis of Presentation and Responsibility for interim Financial Statements (Tables) Tables http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatements 27 false false R28.htm 2304301 - Disclosure - Earnings per share (Tables) Sheet http://www.luxfer.com/role/EarningsPerShareTables Earnings per share (Tables) Tables http://www.luxfer.com/role/EarningsPerShare 28 false false R29.htm 2307301 - Disclosure - Revenue (Tables) Sheet http://www.luxfer.com/role/RevenueTables Revenue (Tables) Tables http://www.luxfer.com/role/Revenue 29 false false R30.htm 2310301 - Disclosure - Restructuring (Tables) Sheet http://www.luxfer.com/role/RestructuringTables Restructuring (Tables) Tables http://www.luxfer.com/role/Restructuring 30 false false R31.htm 2316301 - Disclosure - Goodwill and other identifiable intangible assets (Tables) Sheet http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssetsTables Goodwill and other identifiable intangible assets (Tables) Tables http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssets 31 false false R32.htm 2319301 - Disclosure - Supplementary balance sheet information (Tables) Sheet http://www.luxfer.com/role/SupplementaryBalanceSheetInformationTables Supplementary balance sheet information (Tables) Tables http://www.luxfer.com/role/SupplementaryBalanceSheetInformation 32 false false R33.htm 2322301 - Disclosure - Debt (Tables) Sheet http://www.luxfer.com/role/DebtTables Debt (Tables) Tables http://www.luxfer.com/role/Debt 33 false false R34.htm 2325301 - Disclosure - Derivatives and Financial Instruments (Tables) Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstrumentsTables Derivatives and Financial Instruments (Tables) Tables http://www.luxfer.com/role/DerivativesAndFinancialInstruments 34 false false R35.htm 2331301 - Disclosure - Pension Plans (Tables) Sheet http://www.luxfer.com/role/PensionPlansTables Pension Plans (Tables) Tables http://www.luxfer.com/role/PensionPlans 35 false false R36.htm 2334301 - Disclosure - Share Plans (Tables) Sheet http://www.luxfer.com/role/SharePlansTables Share Plans (Tables) Tables http://www.luxfer.com/role/SharePlans 36 false false R37.htm 2337301 - Disclosure - Shareholders' Equity (Tables) Sheet http://www.luxfer.com/role/ShareholdersEquityTables Shareholders' Equity (Tables) Tables http://www.luxfer.com/role/ShareholdersEquity 37 false false R38.htm 2340301 - Disclosure - Segmental Information (Tables) Sheet http://www.luxfer.com/role/SegmentalInformationTables Segmental Information (Tables) Tables http://www.luxfer.com/role/SegmentalInformation 38 false false R39.htm 2401403 - Disclosure - Basis of Presentation and Responsibility for interim Financial Statements (Details) Sheet http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatementsDetails Basis of Presentation and Responsibility for interim Financial Statements (Details) Details http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatementsTables 39 false false R40.htm 2401404 - Disclosure - Basis of Presentation and Responsibility for interim Financial Statements Allowance for Credit Loss Rollforward (Details) Sheet http://www.luxfer.com/role/BasisOfPresentationAndResponsibilityForInterimFinancialStatementsAllowanceForCreditLossRollforwardDetails Basis of Presentation and Responsibility for interim Financial Statements Allowance for Credit Loss Rollforward (Details) Details 40 false false R41.htm 2404402 - Disclosure - Earnings per share (Details) Sheet http://www.luxfer.com/role/EarningsPerShareDetails Earnings per share (Details) Details http://www.luxfer.com/role/EarningsPerShareTables 41 false false R42.htm 2407402 - Disclosure - Revenue - Disaggregation of Revenue (Details) Sheet http://www.luxfer.com/role/RevenueDisaggregationOfRevenueDetails Revenue - Disaggregation of Revenue (Details) Details 42 false false R43.htm 2407403 - Disclosure - Revenue - Additional Information (Details) Sheet http://www.luxfer.com/role/RevenueAdditionalInformationDetails Revenue - Additional Information (Details) Details 43 false false R44.htm 2407404 - Disclosure - Revenue - Contract Receivables, Contract Assets, and Contract Liabilities (Details) Sheet http://www.luxfer.com/role/RevenueContractReceivablesContractAssetsAndContractLiabilitiesDetails Revenue - Contract Receivables, Contract Assets, and Contract Liabilities (Details) Details 44 false false R45.htm 2407405 - Disclosure - Revenue - Significant Changes in Contract Liabilities (Details) Sheet http://www.luxfer.com/role/RevenueSignificantChangesInContractLiabilitiesDetails Revenue - Significant Changes in Contract Liabilities (Details) Details 45 false false R46.htm 2410402 - Disclosure - Restructuring Narrative (Details) Sheet http://www.luxfer.com/role/RestructuringNarrativeDetails Restructuring Narrative (Details) Details 46 false false R47.htm 2410403 - Disclosure - Restructuring Charges (Details) Sheet http://www.luxfer.com/role/RestructuringChargesDetails Restructuring Charges (Details) Details 47 false false R48.htm 2410404 - Disclosure - Restructuring Reserve (Details) Sheet http://www.luxfer.com/role/RestructuringReserveDetails Restructuring Reserve (Details) Details 48 false false R49.htm 2413401 - Disclosure - Acquisition related costs (Details) Sheet http://www.luxfer.com/role/AcquisitionRelatedCostsDetails Acquisition related costs (Details) Details http://www.luxfer.com/role/AcquisitionRelatedCosts 49 false false R50.htm 2416402 - Disclosure - Goodwill and other identifiable intangible assets - Schedule of Goodwill (Details) Sheet http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssetsScheduleOfGoodwillDetails Goodwill and other identifiable intangible assets - Schedule of Goodwill (Details) Details 50 false false R51.htm 2416403 - Disclosure - Goodwill and other identifiable intangible assets - Schedule of Intangible Assets (Details) Sheet http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssetsScheduleOfIntangibleAssetsDetails Goodwill and other identifiable intangible assets - Schedule of Intangible Assets (Details) Details 51 false false R52.htm 2416404 - Disclosure - Goodwill and other identifiable intangible assets - Additional Information (Details) Sheet http://www.luxfer.com/role/GoodwillAndOtherIdentifiableIntangibleAssetsAdditionalInformationDetails Goodwill and other identifiable intangible assets - Additional Information (Details) Details 52 false false R53.htm 2419402 - Disclosure - Supplementary balance sheet information - Schedule of Condensed Balance Sheet (Details) Sheet http://www.luxfer.com/role/SupplementaryBalanceSheetInformationScheduleOfCondensedBalanceSheetDetails Supplementary balance sheet information - Schedule of Condensed Balance Sheet (Details) Details 53 false false R54.htm 2419403 - Disclosure - Supplementary balance sheet information - Schedule of Current Held-for-Sale Assets and Liabilities (Details) Sheet http://www.luxfer.com/role/SupplementaryBalanceSheetInformationScheduleOfCurrentHeldForSaleAssetsAndLiabilitiesDetails Supplementary balance sheet information - Schedule of Current Held-for-Sale Assets and Liabilities (Details) Details 54 false false R55.htm 2422402 - Disclosure - Debt - Schedule of Debt Outstanding (Details) Sheet http://www.luxfer.com/role/DebtScheduleOfDebtOutstandingDetails Debt - Schedule of Debt Outstanding (Details) Details 55 false false R56.htm 2422403 - Disclosure - Debt - Additional Information (Details) Sheet http://www.luxfer.com/role/DebtAdditionalInformationDetails Debt - Additional Information (Details) Details 56 false false R57.htm 2422404 - Disclosure - Debt - Schedule of Maturities of Company's Debt (Details) Sheet http://www.luxfer.com/role/DebtScheduleOfMaturitiesOfCompanysDebtDetails Debt - Schedule of Maturities of Company's Debt (Details) Details 57 false false R58.htm 2425402 - Disclosure - Derivatives and Financial Instruments - Additional Information (Details) Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstrumentsAdditionalInformationDetails Derivatives and Financial Instruments - Additional Information (Details) Details 58 false false R59.htm 2425403 - Disclosure - Derivatives and Financial Instruments - Schedule of Derivative Instruments (Details) Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstrumentsScheduleOfDerivativeInstrumentsDetails Derivatives and Financial Instruments - Schedule of Derivative Instruments (Details) Details 59 false false R60.htm 2425404 - Disclosure - Derivatives and Financial Instruments - Fair Values of Financial Instruments (Details) Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstrumentsFairValuesOfFinancialInstrumentsDetails Derivatives and Financial Instruments - Fair Values of Financial Instruments (Details) Details 60 false false R61.htm 2425405 - Disclosure - Derivatives and Financial Instruments - Schedule of Changes in Level 3 Instruments (Details) Sheet http://www.luxfer.com/role/DerivativesAndFinancialInstrumentsScheduleOfChangesInLevel3InstrumentsDetails Derivatives and Financial Instruments - Schedule of Changes in Level 3 Instruments (Details) Details 61 false false R62.htm 2428401 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.luxfer.com/role/IncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 62 false false R63.htm 2431402 - Disclosure - Pension Plans - Schedule of Net Benefit Costs (Details) Sheet http://www.luxfer.com/role/PensionPlansScheduleOfNetBenefitCostsDetails Pension Plans - Schedule of Net Benefit Costs (Details) Details 63 false false R64.htm 2431403 - Disclosure - Pension plans - Additional Information (Details) Sheet http://www.luxfer.com/role/PensionPlansAdditionalInformationDetails Pension plans - Additional Information (Details) Details 64 false false R65.htm 2434402 - Disclosure - Share Plans - Schedule of Share-based Compensation Expense (Details) Sheet http://www.luxfer.com/role/SharePlansScheduleOfShareBasedCompensationExpenseDetails Share Plans - Schedule of Share-based Compensation Expense (Details) Details 65 false false R66.htm 2434403 - Disclosure - Share Plans - Additional Information (Details) Sheet http://www.luxfer.com/role/SharePlansAdditionalInformationDetails Share Plans - Additional Information (Details) Details 66 false false R67.htm 2434404 - Disclosure - Share Plans - Share Options Fair Value Assumptions (Details) Sheet http://www.luxfer.com/role/SharePlansShareOptionsFairValueAssumptionsDetails Share Plans - Share Options Fair Value Assumptions (Details) Details 67 false false R68.htm 2437402 - Disclosure - Shareholders' Equity - Schedule of Dividend Paid and Proposed (Details) Sheet http://www.luxfer.com/role/ShareholdersEquityScheduleOfDividendPaidAndProposedDetails Shareholders' Equity - Schedule of Dividend Paid and Proposed (Details) Details 68 false false R69.htm 2440402 - Disclosure - Segmental Information - Additional Information (Details) Sheet http://www.luxfer.com/role/SegmentalInformationAdditionalInformationDetails Segmental Information - Additional Information (Details) Details 69 false false R70.htm 2440403 - Disclosure - Segmental Information - Financial information by reportable segment (Details) Sheet http://www.luxfer.com/role/SegmentalInformationFinancialInformationByReportableSegmentDetails Segmental Information - Financial information by reportable segment (Details) Details 70 false false R71.htm 2440404 - Disclosure - Segmental Information - Geographic information by region (Details) Sheet http://www.luxfer.com/role/SegmentalInformationGeographicInformationByRegionDetails Segmental Information - Geographic information by region (Details) Details 71 false false R72.htm 2440405 - Disclosure - Segmental Information - Reconciliation of consolidated segment income (Details) Sheet http://www.luxfer.com/role/SegmentalInformationReconciliationOfConsolidatedSegmentIncomeDetails Segmental Information - Reconciliation of consolidated segment income (Details) Details 72 false false R73.htm 2446401 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://www.luxfer.com/role/CommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 73 false false All Reports Book All Reports a10-qmarch2020.htm exhibit311.htm exhibit312.htm exhibit321.htm exhibit322.htm lxfr-20200329.xsd lxfr-20200329_cal.xml lxfr-20200329_def.xml lxfr-20200329_lab.xml lxfr-20200329_pre.xml http://xbrl.sec.gov/country/2017-01-31 http://fasb.org/srt/2018-01-31 http://xbrl.sec.gov/currency/2017-01-31 http://fasb.org/us-gaap/2018-01-31 http://xbrl.sec.gov/dei/2019-01-31 true true